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<p>The triboelectric nanogenerators (TENGs) based on polyvinylidene fluoride (PVDF) have attracted significant attention due to their high energy conversion efficiency and strong flexibility. Indeed, the TENGs with higher electrical performance and stronger mechanical robustness are more desirable. In this context, we design and fabricate TENGs based on nanofiber (NF) layer of Poly(vinylidene fluoridehexafluoropropylene) (PVDF-HFP), a copolymer of PVDF with better mechanical properties, in which the enhancement of dielectric constant and specific surface area is achieved by incorporation of BaTiO<sub>3</sub> into PVDF-HFP NFs using electrospinning. The results show that the TENGs demonstrates superior electrical performance. The optimized TENG exhibits an open-circuit voltage (<i>V</i><sub>OC</sub>) of 432 V, a short-circuit current (<i>I</i><sub>SC</sub>) of 44.2 µA, and a maximum power density (Pd) of 2.25 W/m<sup>2</sup>. Practical applications of the optimized TENG are also demonstrated, including its use as power source, cylindrical rotating energy harvester and self-powered wearable sensor. The findings give insights into the fabrication, performance and application of the TENGs based on BaTiO<sub>3</sub>-incorporated PVDF-HFP NFs, offering promising solutions for energy harvesting and diverse applications.</p>

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Performance enhancement of triboelectric nanogenerator based on BaTiO3-incorporated PVDF-HFP nanofibers for self-powered wearable sensors

  • 期刊论文

  • 发表日期：

    2024年12月31日

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  • Tianjie Deng,
  • Xi Zhang,
  • Zhuanqing Yang,
  • Gang Xiang

摘要

The triboelectric nanogenerators (TENGs) based on polyvinylidene fluoride (PVDF) have attracted significant attention due to their high energy conversion efficiency and strong flexibility. Indeed, the TENGs with higher electrical performance and stronger mechanical robustness are more desirable. In this context, we design and fabricate TENGs based on nanofiber (NF) layer of Poly(vinylidene fluoridehexafluoropropylene) (PVDF-HFP), a copolymer of PVDF with better mechanical properties, in which the enhancement of dielectric constant and specific surface area is achieved by incorporation of BaTiO3 into PVDF-HFP NFs using electrospinning. The results show that the TENGs demonstrates superior electrical performance. The optimized TENG exhibits an open-circuit voltage (VOC) of 432 V, a short-circuit current (ISC) of 44.2 µA, and a maximum power density (Pd) of 2.25 W/m2. Practical applications of the optimized TENG are also demonstrated, including its use as power source, cylindrical rotating energy harvester and self-powered wearable sensor. The findings give insights into the fabrication, performance and application of the TENGs based on BaTiO3-incorporated PVDF-HFP NFs, offering promising solutions for energy harvesting and diverse applications.